DE767503C - Process for the production of ozone-resistant, oil-resistant and hardly combustible synthetic rubber vulcanizates - Google Patents

Process for the production of ozone-resistant, oil-resistant and hardly combustible synthetic rubber vulcanizates

Info

Publication number
DE767503C
DE767503C DES146289D DES0146289D DE767503C DE 767503 C DE767503 C DE 767503C DE S146289 D DES146289 D DE S146289D DE S0146289 D DES0146289 D DE S0146289D DE 767503 C DE767503 C DE 767503C
Authority
DE
Germany
Prior art keywords
resistant
ozone
oil
production
synthetic rubber
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DES146289D
Other languages
German (de)
Inventor
Hans Dr Phil Mueller
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens Schuckertwerke AG
Siemens AG
Original Assignee
Siemens Schuckertwerke AG
Siemens AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to NL64211D priority Critical patent/NL64211C/xx
Application filed by Siemens Schuckertwerke AG, Siemens AG filed Critical Siemens Schuckertwerke AG
Priority to DES146289D priority patent/DE767503C/en
Application granted granted Critical
Publication of DE767503C publication Critical patent/DE767503C/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
    • H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
    • H01B3/44—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins
    • H01B3/441—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins from alkenes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/02—Elements
    • C08K3/06—Sulfur
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
    • C08K5/0016—Plasticisers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L21/00—Compositions of unspecified rubbers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
    • C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L27/04—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
    • C08L27/06—Homopolymers or copolymers of vinyl chloride
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
    • C08L9/02—Copolymers with acrylonitrile

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Description

Bestimmte Sorten von Kunstkautschuk, wie Mischpolymerisate von Butadien mit Acrylsäurenitril, zeichnen sich durch gute Ölbeständigkeit aus. Es ist auch bereits ein Vorschlag bekannt, durch Beigabe von weichmacherhaltigem Polyvinylchlorid oder vinylchloridhaltigen 1Tischpolymerisaten die Ozonfestigkeit derartiger synthetischer Kautschukmischungen zu erhöhen und die Brennbarkeit herabzusetzen. Die Erfindung beruht nun auf der Erkenntnis, daß das in neuzeitlichen Kautschukmischungen als Vulkanisationsaktiv ator übliche Zinkotyd in derartigen polyvinylchloridhaltigen ozonfesten Mischungen zu Zersetzungen des Polyvinylchlorids führt; das Zinkoxyd verbindet sich nämlich mit der von dem Polyvinylchlorid beim Vulkanisationsvorgang abgespaltenen Salzsäure zu Zinkchlorid, das einen äußerst schädlichen Einfluß auf das Polyvinylchlorid ausübt und als starker Elektrolyt die elektrischen Eigenschaften der Mischung stark verschlechtert.Certain types of synthetic rubber, such as copolymers of butadiene with acrylonitrile, are characterized by good oil resistance. It is also already known a proposal by adding plasticized polyvinyl chloride or vinyl chloride-containing copolymers, the ozone resistance of such synthetic Increase rubber compounds and reduce flammability. The invention is now based on the knowledge that in modern rubber compounds as Vulkanisationsaktiv ator common zinc oxide in such polyvinyl chloride ozone-resistant mixtures lead to decomposition of the polyvinyl chloride; the zinc oxide namely combines with that of the polyvinyl chloride during the vulcanization process split off hydrochloric acid to zinc chloride, which has an extremely harmful influence on the polyvinyl chloride exerts and as a strong electrolyte the electrical properties the mixture greatly deteriorated.

Gemäß der Erfindung wird daher bei der Herstellung ozonbeständiger, ölfester und schwerbrennbarer Vulkanisate aus 'Mischungen von künstlichem Kautschuk und weichmacherhaltigem Polvvinylchlorid oder Vinylchlorid enthaltenden Mischpolymerisaten an Stelle von Zinkoxyd als Vulkanisationsaktivator Bleioxyd verwendet. Denn das aus diesem sich bildende Bleichlorid übt keine zersetzende Wirkung auf das Polyv iny lchlorid aus. Infolge seiner Wasserunlöslichkeit verschlechtert es auch nicht die elektrischen Eigenschaften der Mischung.According to the invention is therefore in the production of ozone-resistant, Oil-resistant and flame-retardant vulcanizates made from mixtures of synthetic rubber and copolymers containing plasticized polyvinyl chloride or vinyl chloride lead oxide is used instead of zinc oxide as vulcanization activator. Because that lead chloride formed from this has no decomposing effect on the poly inyl chloride. It also does not deteriorate due to its insolubility in water the electrical properties of the mixture.

Nachstehend wird ein Beispiel für eine Mischung gemäß der Erfindung .gegeben, ohne daß die Erfindung hierauf beschränkt wäre. Die Mischungsverhältnisse können hiervon in weiten Grenzen abweichen, und es können gegebenenfalls auch noch andere Füllstoffe vorgesehen werden. ioo Teile eines künstlichen Kautschuks. insbesondere eines -Mischpolymerisates von Butadien mit Acrylsäurenitril, 6,9 Teile Poly vinylchlorid, 5o Teile eines üblichen Weichmachers für Polvvinvlchlorid, z. B. Tikresylphosphat, 1,5 Teile Schwefel, 2 Teile Vulkanisationsbeschleuniger, z. B. Vulkazit D. 1I., 2 Teile eines üblichen Alterungsschutzmittels, z. B. Aldolpulver, i Teil Stearinsäure, 2o Teile Bleiglätte.The following is an example of a mixture according to the invention .Given without the invention being restricted thereto. The mixing ratios can deviate from this within wide limits, and it may also be possible other fillers can be provided. 100 parts of an artificial rubber. in particular a copolymer of butadiene with acrylonitrile, 6.9 parts of poly vinyl chloride, 50 parts of a conventional plasticizer for polyvinyl chloride, e.g. B. ticresyl phosphate, 1.5 parts sulfur, 2 parts vulcanization accelerator, e.g. B. Vulkazit D. 1I., 2 parts of a conventional anti-aging agent, e.g. B. aldol powder, i part stearic acid, 2o parts of black lead.

Bei der Herstellung einer solchen Mischung werden zunächst das Polyvinylchlorid und der Weichmacher miteinander vermengt, worauf die Masse bei i2oL C mit dem künstlichen Kautschuk homogen verknetet wird. Anschließend werden dann die übrigen Mischungsbestandteile in üblicher Weise eingewalzt.In the production of such a mixture, the polyvinyl chloride is used first and the plasticizer mixed together, whereupon the mass at i2oL C with the artificial Rubber is kneaded homogeneously. Then the remaining components of the mixture are then used rolled in in the usual way.

Die Mischung gemäß der Erfindung ist für alle Zwecke verwendbar, bei denen höchste Anforderungen an Ölbeständigkeit und Ozonfestigkeit sowie Schwerbrennbarkeit gestellt werden. Beispielsweise ist die Mischung mit Vorteil für die Herstellung von Mänteln für bewegliche elektrische Kabel und Leitungen oder von Deckschichten für die Isolierung von Hochspannungsleitungen sowie für Formartikel an Hochspannungsgeräten u. dgl. verwendbar.The mixture according to the invention can be used for all purposes which meet the highest requirements in terms of oil resistance and ozone resistance as well as flame resistance be asked. For example, the mixture is advantageous for manufacturing of sheaths for movable electrical cables and lines or of cover layers for the insulation of high-voltage lines as well as for molded articles on high-voltage devices and the like can be used.

In der Zeichnung sind einige Anwendungsbeispiele einer Mischung gemäß der Erfindung dargestellt.In the drawing are some application examples of a mixture according to of the invention shown.

Fig. i zeigt ein bewegliches elektrisches Kabel, dessen Leiter i mit einer Isolierung aus natürlichem oderkünstlichem Kautschuk versehen sind und das einen Mantel 3 aus einem Kautschuk gemäß der Erfindung besitzt. Ein solches Kabel eignet sich wegen der Unbrennbarkeit des Mantels besonders zur Verwendung im Bergbau unter Tage.Fig. I shows a movable electrical cable, the conductor i with an insulation made of natural or synthetic rubber and that has a jacket 3 made of a rubber according to the invention. Such a cable Because of the incombustibility of the jacket, it is particularly suitable for use in mining underground.

Fig. 2 zeigt eine Hochspannungszündleitung. deren Leiter 4. eine Isolierung 5 aus einem künstlichen Kautschuk mit einer darüber angebrachten Deckschicht 6 aus einer ozonfesten Gummimischung gemäß der Erfindung und darüber eine Faserstoffbeflechtung 7 besitzt.Fig. 2 shows a high voltage ignition line. their conductors 4. an insulation 5 made of an artificial rubber with a cover layer 6 applied over it an ozone-resistant rubber mixture according to the invention and above it a fiber braid 7 owns.

Fig.3 zeigt eine Dichtung für ein Hochfreduenzbestrahlungsgerät in Form eines Hohlringes, der aus einem ozonfesten Kautschuk gemäß der Erfindung hergestellt ist.3 shows a seal for a high-efficiency irradiation device in Shape of a hollow ring made from an ozone-resistant rubber according to the invention is.

Claims (1)

PATE\TANSPRL CH: Verfahren zur Herstellung ozonbeständiger, ölfester und schwerbrennbarer Vulkanisate aus 'Mischungen von künstlichem Kautschuk und weichmacherhaltigem Polyvinv lchlorid oder Vinylchlorid enthaltenden Misehpolymerisaten, dadurch gekennzeichnet, daß man als Vulkanisationsaktivator Bleioxyd verwendet. Zur Abgrenzung des Erfindungsgegenstands vom Stand der Technik ist im Erteilungsverfahren folgende Druckschrift in Betracht gezogen worden: Gummi-Zeitung, 55. Bd., S. .:j.70 bis 47iPATE \ TANSPRL CH: Process for the production of ozone-resistant, oil-proof and flame-retardant vulcanizates made from mixtures of synthetic rubber and those containing plasticizers Polyvinyl chloride or vinyl chloride-containing mixed polymers, characterized in that that lead oxide is used as a vulcanization activator. To delimit the subject matter of the invention From the state of the art, the following publication is to be considered in the granting procedure been drawn: Gummi-Zeitung, 55th vol., p.: j.70 to 47i
DES146289D 1941-07-23 1941-07-23 Process for the production of ozone-resistant, oil-resistant and hardly combustible synthetic rubber vulcanizates Expired DE767503C (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
NL64211D NL64211C (en) 1941-07-23
DES146289D DE767503C (en) 1941-07-23 1941-07-23 Process for the production of ozone-resistant, oil-resistant and hardly combustible synthetic rubber vulcanizates

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES146289D DE767503C (en) 1941-07-23 1941-07-23 Process for the production of ozone-resistant, oil-resistant and hardly combustible synthetic rubber vulcanizates

Publications (1)

Publication Number Publication Date
DE767503C true DE767503C (en) 1952-12-08

Family

ID=7542351

Family Applications (1)

Application Number Title Priority Date Filing Date
DES146289D Expired DE767503C (en) 1941-07-23 1941-07-23 Process for the production of ozone-resistant, oil-resistant and hardly combustible synthetic rubber vulcanizates

Country Status (2)

Country Link
DE (1) DE767503C (en)
NL (1) NL64211C (en)

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
NL64211C (en) 1900-01-01

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